Effect of wall thermal conductivity and thickness on the performance of heat-recirculating reactors

J. Ahn, P. D. Ronney

Research output: Chapter in Book/Entry/PoemConference contribution


Recent studies of spiral counterflow "Swiss-roll" heat-recirculating reactors have demonstrated the importance of streamwise heat conduction on their performance. Titanium-811 Swiss rolls having a thermal conductivity (k) of 6 W/m-K, geometrically similar to inconel-718 reactor (k ≈ 11.4 W/m-K), were constructed to test this hypothesis using propane-air mixtures with speciallyprepared Pt catalyst. Three different wall thicknesses were studied. As suggested by theoretical studies, better performance was found for low-k, thin-walled reactors. Under these conditions, self-sustaining chemical reaction could be maintained at maximum temperatures below 55 °C with ignition temperatures below 90 °C. These results may be useful for development of micropower generation devices employing thermoelectrics or solid-oxide fuel cells.

Original languageEnglish (US)
Title of host publication5th US Combustion Meeting 2007
PublisherCombustion Institute
Number of pages7
ISBN (Electronic)9781604238112
StatePublished - 2007
Externally publishedYes
Event5th US Combustion Meeting 2007 - San Diego, United States
Duration: Mar 25 2007Mar 28 2007

Publication series

Name5th US Combustion Meeting 2007


Other5th US Combustion Meeting 2007
Country/TerritoryUnited States
CitySan Diego

ASJC Scopus subject areas

  • General Chemical Engineering
  • Physical and Theoretical Chemistry
  • Mechanical Engineering


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